<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>带你走入前端动画的世界-如风般魅影-transition入门例子</title>
  <link rel="stylesheet" href="./style/demo-transition.css">
</head>
<body>
  <div class="box demo-1">

  </div>
  <!-- animation例子 -->
  <div class="demo-2">
    <div class="cell"></div>
  </div>
  <div class="box demo-3">
     
  </div>
  
</body>
</html>